SOLUTION: Write a rule and find the given term in the geometric sequence described below. Show your work. What is the eighth term when the first term is -4 and the common ratio is -1/2?

Question 255741: Write a rule and find the given term in the geometric sequence described below. Show your work. What is the eighth term when the first term is -4 and the common ratio is -1/2?
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
The formula for geometric sequences is
(i)
using given infpormation, we get
(ii)
this is
(iii)
or
(iv)
Now, (i) becomes
(v)
the 8th term is
(vi)
or
(vii)

T(8) = 1/32
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